baber/WOPTO huggingface dataset:
Patent GB-888330-A (GB)
Title: Spindle operating mechanism for chuck-spindles on automatic multiple-spindle lathes
IPC: B23Q5/20
Filed: 1957-08-14
Abstract: 888,330. Lathes. SCHUTTE, A. H., COMMER, G., WELCKER, L., THEN, E., and PECHMANN, E. F., VON, [trading as SCHUTTE, ALFRED H.]. Aug. 14, 1957 [Aug. 27, 1956], No. 25684/57. Class 83 (3). In a multi-spindle automatic lathe, means is provided for disengaging the drive to the spindle 11 at a predetermined station, applying a brake 25 to the spindle, releasing the brake and rotating the spindle slowly until it is stopped by a locking device 62 for operation of the jaw-chuck 14 by the motor 20 which effected slow-rotation of the spindle. During machining, the spindle is rotated through a friction coupling 12, loaded by a slidable collar 24 on the spindle, and disengaged by movement of the collar against the fixed brake 25. The collar is moved by a rotating cam-drum 28, through a lever 36, a resilient link 37, 66 and a slider 38 movable on rods 34 and having a rigid connection 39 with an annular recess 40 in the collar 24. A further cam 29 on the drum 28 advances the chuckoperating mechanism 61, through a similar linkage 31, 65, 32, 33, 35, towards a flange 90 on the end of the spindle. A projection 78 on the lever 31 engages a member 67 carried by the slider 38, thus displacing the slider to release the brake 25. This displacement defleets the spring 66, Fig. 2, which offers less resistance than spring 65. If the locking teeth 62 on a sleeve 60 in the mechanism 61 do not engage corresponding grooves in the flange 90, contact between the teeth and flange presses the sleeve into the casing of the mechanism, against the pressure of a spring 45. A flange 68 on the sleeve moves, and thus couples at 70, a sleeve 69 with a sleeve 71 which has internal teeth 72 meshing with a pinion 77 driven by a gear 76 on a shaft 75 coupled to the electric motor 20, which is started as a contact 74 is closed by a rod 73 displaced by the sleeve 60. The sleeve 69 is coupled to a sleeve 64 which engages a friction disc 63 on the flange 90, thus rotating the spindle until the teeth 62 enter the grooves in the flanges, the return movement of the sleeve 60 disengaging the coupling 70 and stopping the motor 20. Chuck operation.-Clutch-teeth 80 on the end of the shaft 75 are urged by a spring 79 against teeth on a shaft having a clutch 18 to engage and rotate a nut 17 engaging screw-threads on a two-part chuck-operating draw-spindle 15, 16.
Patent GB-1433022-A (GB)
Title: Directive antenna arrays
IPC: H01Q21/00
Filed: 1973-05-30
Abstract: 1433022 Aerials INTERNATIONAL STANDARD ELECTRIC CORP 30 May 1973 [19 June 1972] 25701/73 Heading H4A A frequency-scanned aerial includes a plurality of spaced-apart radiating elements which are fed in order from successive correspondingly spaced points along a transmission line. The radiating elements are arranged in sub-groups, and the arrangement is such that not all the said spacings along the transmission line are the same. As described, a wideband aerial array is constituted by a plurality of pairs of radiating slots which are cut in one of the narrow sides cf a rectangular waveguide. The slots of each pair are parallel, are spaced S 1  apart, and alternate pairs are inclined at + # and -# degrees to planes which are perpendicular to the waveguide axis. The centres of adjacent pairs of slots are spaced S 2  apart. By suitably proportioning S 1  with respect to S 2 , the formation of a grating lobe during scanning may be avoided.
Patent GB-1383029-A (GB)
Title: Method for obtaining tobacco aroma substances
IPC: A24B15/26
Filed: 1972-06-02
Abstract: 1383029 Tobacco extract H F and P H F REEMTSMA 2 June 1972 [9 June 1971] 25837/72 Heading A2C Tobacco aroma substances are obtained by extracting tobacco to isolate only those components of the tobacco which are soluble in a solvent or solvent mixture lying in the mixotropic series of K Macek in Handbuch der Papierchromatographie, vol. I, VEB Gustav Fischer-Verlag, Jena (1958) between trichloroethylene and ethyl acetate inclusive and then, in order to activate precursers of smoke flavour materials, subjecting the residue obtained after removing the solvent(s) from the isolate solution to heat treatment at a temperature between 30‹C and 260‹C inclusive. The residue may be fractionated by differential solvent extraction processes with solvents lying outside the above limits to further isolate the natural aroma substances of tobacco from undesired associated substances.
Patent GB-839866-A (GB)
Title: Counter-pressure block for moulding machines
IPC: B22C15/08
Filed: 1956-08-23
Abstract: 839,866. Moulding-machines. BADISCHE MASCHINFABRIK AKTIENGESELLSCHAFT SEBOLDWERK: Aug. 23, 1956 [Aug. 24, 1955], No. 25838/56. Class 83 (1). A counter-pressure head for the successive production of various moulds on. a turntable moulding machine has various negative patterns 9, 10 secured to a plate 16 which is turnable about a vertical axis 12, and in synchronism with the turntable 14.
Patent GB-338873-A (GB)
Title: Improvements in or relating to high frequency signalling systems
Filed: 1929-08-26
Abstract: 338,873. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). Aug. 26, 1929. Directive signalling; aerials; coupling aerial and detector circuits.-A high frequency system, particularly intended for signal reception, comprises an antenna 1 and a similar reflector unit 2 spaced one quarter wavelength apart and each connected to a transmission line whereby currents of opposite phase flow in the two lines 3, 4, which are spaced by a distance small compared with the wavelength. The' object of the invention is to increase the directive efficiency of the system by reducing or eliminating radiation from the transmission line. In a modification, shown in Fig. 2, a common counterpoise 10 is positioned midway between the lines 3, 4, its length being equal to the largest odd multiple of a quarter wavelength that can be accommodated in the total length available. By this means any radiation from the transmission line due to asymmetry of the antenna and reflector currents is effectively annulled, the counterpoise carrying the out-of-balance current so that the field due to the three wire arrangement is substantially zero.
Patent GB-1247490-A (GB)
Title: Non-linear decoder
IPC: H03M1/00
Filed: 1969-05-21
Abstract: 1,247,490. Non-linear decoder. INTERNATIONAL STANDARD ELECTRIC CORP. 21 May, 1969 [25 June, 1968], No. 25954/69. Heading G4H. In a non-linear decoder with a compression, curve having linear segments (R<SP>1</SP> Q<SP>1</SP>, P<SP>1</SP> P, Q R, Fig. 1, not shown) between which are logarithmic segments (Q<SP>1</SP> P<SP>1</SP>, P Q) the most significant bits of the number to be decoded, which in the embodiment described is a 7-bit digit, are decoded into a signal on one of leads C<SP>1</SP>1 ... C<SP>1</SP>7 (Fig. 2) or C<SP>11</SP>1-C<SP>11</SP>7 depending on the polarity of the input to enable an electronic gate P<SP>1</SP>1- p<SP>1</SP>7, P<SP>11</SP>1-P<SP>11</SP>7 to determine the point of injection of current into a double ladder network SP, SN. The magnitude of the current is derived from constant current generators G0-G8 and G9-G13 used over the non-linear and linear segments of the curve respectively. Generators G1-G8 are enabled by the outputs of a decoder D2 receiving the least significant bits and by a logic signal #A which exists over the non-linear segments. Generator G0 is enabled by the signal #A to feed current either through gate H or gate J in dependence on the polarity of the input to the end of one of the ladder networks. Generators G9-G12 are enabled over the linear segments by the four least significant bits. Generator G13 is enabled only over the end linear segments (R<SP>1</SP> Q<SP>1</SP>, Q R) to feed current through the enabled gate to the ladder network. The output is taken across terminals M N.
Patent GB-872224-A (GB)
Title: Improvements in or relating to methods of refining crude iron
IPC: C21C5/32
Filed: 1957-08-16
Abstract: Pig iron is refined by the conventional surface blowing process modified in that when the carbon content of the bath reaches 2-0.8% the iron content of the slag is increased by at least 50% and preferably by 200% by the addition of iron oxide, allowing the reactive slag so formed to remain in contact with the bath to extract at least the major portion of the phosphorus, removing the slag, and continuing blowing until the desired carbon content is reached.  The iron oxide may be added in the form of scarfing scale, iron ore, or a combination thereof.  After deslagging, a fresh slag may be formed and blowing continued using a reduced oxygen pressure to lower the rate of combustion of carbon.  It is stated that the contact between the relatively cool slag and hot metal favours the dephosphorization reaction.
Patent GB-278705-A (GB)
Title: Composite signalling conductors
IPC: H01B13/28
Filed: 1927-10-01
Abstract: 278,705. Electrical Research Products, Inc., (Assignees of Legg, V. E.). Oct. 6, 1926, [Convention date]. Loaded cables.-Relates particularly to loaded electric signalling conductors with a chemically inert spacing material placed between the magnetic loading material and the central conductor. The spacing material may be a highly refractory powder, such as electrically fused alumina, corundum, silicon carbide, kaolin, quartz, or dehydrated talc, and according to the invention, this is applied with a low boiling-point binder such as glycerine. Apparatus shown in Fig. 3 comprises a chamber 23 containing fibrous material supplied with glycerine through a funnel 25, the conductor 20 being drawn up through apertures in the chamber 23 and being then passed through a chamber 26 containing the powdered refractory substance. The magnetic material 13 is applied helically from a spool and the conductor passed through an oven 30 with heating jets 31 to boil off the glycerine. Specification 248,922 is referred to.
Patent GB-394842-A (GB)
Title: Improvements in or relating to short-time electric switches especially for lighting staircases at night
IPC: H01H43/30
Filed: 1932-09-19
Abstract: 394,842. Automatic circuit-breakers. BERTELE, R., 3, Stradone Duomo, Verona, Italy. Sept. 19, 1932, No. 25985. Convention date, Sept. 19, 1931. [Class 38 (v).] In a short time-switch for controlling electric lights, and having an electromagnet whose co-operating armature is adapted to close contacts included in the lighting circuit, and a heating circuit for an expanding member which controls the period of operation of the lights, the electromagnet is energized from a separate low voltage circuit under the control of a pushbutton switch. In the construction shown, energization of the electromagnet E, by closure of the low voltage circuit, attracts an armature a pivoted at o which thereupon closes contacts C, L included in the heating circuit of an expanding member D, and the main lighting circuit respectively, the armature being retained in this position by a latch lever e. The expanding member D then operates a lever b which first moves a holding latch g so as to retain contacts L closed, and subsequently unlatches the armature a so that the heating contacts C are opened. When the member D has contracted, latch g releases contacts L, and the lighting circuits is opened. In the event of overheating of the expanding member D, a second latch provided on lever e releases a safety lever s so that contacts S included in the circuit of electromagnet E are disengaged.
Patent GB-182727-A (GB)
Title: Gate locking device for coal mining shafts
IPC: B66B13/04
Filed: 1922-03-01
Abstract: 182,727. Gardner, J., and Stevenson, W. March 1, 1922. Lift doors, locking and unlocking.-In shaftgate locking-devices which prevent the opening of a gate unless the cage is opposite thereto, of the type in which a bolt is flexibly connected to striker mechanism arranged in the path of the cage, the striker 6 is mounted on a shaft 7 which is moved axially by a lever 10 and arm 12 to put the mechanism into or out of action. The bolt 1 is connected bv a chain 5 to an arm 9 on the shaft 7.
Patent GB-604380-A (GB)
Title: Process and plant for the mechanical preparation of coals and minerals by washing in a plurality of chutes
IPC: B03B11/00
Filed: 1945-10-06
Abstract: 6 0 4,3 8 0. Trough washers. RHEOFRANCE COMPAGNIE INTERNATIONALE DES RHEOLAVEURS A FRANCE. Oct. 6, 1945, No. 26076. Convention date, July 23, 1941. [Class 82(ii)] In a process of trough washing in chutes having extractors for the dense products in which the thickness or slope, of the deposit in the chutes is employed to control the output of the extractors, the thickness or slope of the deposit in the first chute controls the extractors not only on the first chute but also on one or more of the following chutes, the thickness and slope of the deposits in the following chutes regulating the extractors of 'the chutes only with which they are associated. As shown, the profile of the deposit in the upper chute 6 operates electrical contacts A1 to A5 which, in turn, regulate the operation of the extractors 7 in that chute and also in one or both of the following chutes, while the deposit in the second chute operates contacts A6 and A7 regulating the extractors in the second chute only and contacts A8 to A10, the extractors in the third chute only. The extractors may be of the electrically regulated type (Figs. 2 and 3, not shown).
Patent GB-721139-A (GB)
Title: Improvements in or relating to circuit arrangements for charging capacitors
IPC: H05B41/32
Filed: 1953-09-23
Abstract: 721,139. Systems for charging condensers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 23, 1953 [Sept. 26, 1952], No. 26220/53. Class 38 (4). In a charging system for a condenser 6 (which may be used for operating a photographic discharge lamp, or in a welding circuit) of the kind wherein a voltage-measuring circuit controls a switch to disconnect from a supply source a charging transformer 2 and its associated rectifier 5 when the condenser attains a predetermined voltage, subsequent loss of voltage by discharge of the condenser through the voltage-measuring circuit is avoided by the provision of an auxiliary condenser and rectifier 4, 3, respectively, in the charging circuit, as shown, and by connecting the measuring circuit across either of the rectifiers, if desired via the secondary winding 1 of the transformer. In the arrangement shown, a voltage-measuring potentiometer 9-11, in effect, shunts the auxiliary rectifier 4 and, through a condenser 12 and a discharge tube 13, which breaks down when condenser 6 reaches the predetermined voltage, energizes a coil 14 of a relay to open contacts 15, 16 and thereby disconnect from a battery power source 18 a vibrator 21 over which the primary winding of the transformer receives its supply. The rectifier 5 prevents condenser 6 from discharging through the potentiometer 9-11. Charging of condenser 6 after each discharge is effected by momentary closure of a push button 20 (after closing a master switch 17), which energizes a relay coil 19 from the battery, causing contacts 15, 16 to close and complete the input circuit of the vibrator. Automatic re-charge is obtained if a further switch 23 is set into the full-line position shown, whereby upon each discharge of the main condenser 6 a further condenser 25 supplies a pulse of current to the relay winding 14 in such a direction as to effect closure of the contacts 15, 16.
Patent GB-491825-A (GB)
Title: Improvements in or relating to packing devices for rotating shafts
IPC: F16J15/38
Filed: 1937-09-28
Abstract: 491,825. Stuffing - box substitutes. ROTARY SEAL CO. Sept. 28, 1937, No. 26305. Convention date, Oct. 21, 1936. [Class 122 (v)] A shaft packing device comprises a cup shaped member 21 bearing on the casing 17 and enclosing a resilient packing element 29 having a sleeve portion 27, frictionally engaging and rotating with the shaft, and a flange 25 forced at its periphery into contact with the bottom of the cup, whereby it can act as a diaphragm to permit axial play of the shaft without breaking the seal. The periphery of the flange may be engaged by a collar 33 secured to or mounted slidably within the cup and loaded by a spring 37. The sleeve portion 27 may be gripped by a band 31. The Specification as open to inspection under Sect. 91 describes also the construction shown in Fig. 4 (Cancelled) in which the cup shaped member is replaced by a ring 49 having peripheral slots engaged by detents in a member 45 surrounding the resilient packing 29 and loaded by a spring 37. This subject-matter does not appear in the Specification as accepted.
Patent GB-1306756-A (GB)
Title: Motion transformer
IPC: G04C3/10
Filed: 1971-04-19
Abstract: 1306756 Tuning mechanisms SUWA SEIKOSHA KK 19 April 1971 [8 April 1970 23 Dec 1970] 26322/71 Heading G3T A "motion transformer" for converting vibratory motion to rotary motion as used in an electric watch has a vibrator means such as a tuning fork 5 and at least one resilient member 7 coupled to the vibrator means by one end and having its other end in engagement with a ratchet wheel 8 and being chordally disposed relative to the wheel. Another resilient member 6 co-operates with the wheel to provide additive drive. Figs. 6(i), (ii), (iii) show different methods of attachment of a palet jewel 7a at the end of the resilient member for co-operation with the ratchet wheel. The resilient member may have two parallel leaf spring arms 7', 7", Fig.7, with a palet jewel 7a between the free ends. The two members 6, 7 may be attached to different points on the same tine or to different tines of the fork 9, Figs. 9 to 13 (not shown) and the wheel may be located between the tines Figs.12, 13 (not shown).
Patent GB-1391964-A (GB)
Title: Airborne radar receiver
IPC: G01S13/18
Filed: 1972-06-06
Abstract: 1391964 Pulse radar ELECTRONIQUE MARCEL DASSAULT 6 June 1972 [8 June 1971] 26343/72 Heading H4D In an airborne radar receiver incorporating one or two searching and tracking range gates an additional range gate accompanying and adjacent to the searching and tracking gate(s) is provided in the direction of greater range and all the gates are brought back to "zero" when the additional gate encounters an echo of width greater than that corresponding to a point target. Thus ground echoes do not cause false range tracking. Storage means causes search to resume after a predetermined time interval.
Patent GB-1072505-A (GB)
Title: Air-conditioning apparatus
IPC: F24F11/75
Filed: 1964-06-25
Abstract: 1,072,505. Ventilators. CONNOR ENGINEERING CORPORATION. June 25, 1964 [Dec. 4, 1963], No. 26397/64. Heading F4V. A device for controlling flow of conditioned air from a plenum to a room comprises a pair of dampers operated by the pressure of air flowing over them and a further manually controlled air flow throttling device. As illustrated, the manual device comprises two slotted troughshaped casing members 5 and 8, the former being fixed and the latter movable by a screw 51 to form a hit-and-miss damper. The member 8 is held in place by a coil spring 20. The air flow controlled dampers comprise flaps 33 and 34 pivoted on rods 31 and 32 secured to end walls of the casing. The flaps are pivotally connected by pairs of links to a block 39 slidable on a threaded rod 40 under the action of air flow pressure against a spring 44. The effect of the spring is adjusted by turning the rod 40 in a fixed threaded boss 41. In another embodiment, Fig. 4 (not shown), the hit-andmiss damper arrangement is replaced by pivoted casing members (54 and 55) which are adjusted against the action of springs (58) by turning a rod (59) around which is wrapped a wire (60).
Patent GB-229728-A (GB)
Title: Improvements in and relating to boilers and cooking stoves
IPC: F24C13/00
Filed: 1923-10-23
Abstract: 229,728. Allin, H. P. Oct. 23, 1923. Closed solid - fuel stoves; cooking-stoves; boilers, arrangement of-A boiler stove comprises a water jacket 1 surrounding the combustion chamber 4 formed with an enlarged upper part 13 overhanging the fire space, its lower part extending beneath the grate as an inwardly-protruding shoe 8, a hotplate 14 spaced above the top of the water jacket with a flue passage therebetween and a flue fitment 19 serving to provide a rearward extension of the flue passage with an auxiliary hot-plate 25. An air-check 21 may be fitted in front of the auxiliary hot-plate and a damper 24 in the fluepassage. The boiler may have a counter-sunk manhole door 15 in the top, with a cover 16 to prevent corrosion. Specifications 217,295 and 218,879 are referred to.
Patent GB-882947-A (GB)
Title: Improvements in or relating to mine roof support systems in combination with yielding pushing jacks
Inventor: BARRETT WESLEY HORACE
IPC: E21D23/00
Filed: 1958-08-18
Abstract: 882,947. Mine roof supports. DOWTY MINING EQUIPMENT Ltd. Aug. 18, 1959 [Aug. 18, 1958], No. 26519/58. Class 20(2) [Also in Group XXX] A mine roof support unit comprising two roof bars 16 which are supported by hydraulic props 13, 14, 15 mounted on base members 12, is provided with a hydraulically operated pusher 26 which is coupled to a conveyer 29. The base members 12 and associated props are advanced alternately by a hydraulic jack 23. A plough 51 (not shown) is coupled to the conveyer by a bearing 52.
Patent GB-156364-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23L9/04
Filed: 1919-10-29
Abstract: 156,364. Gardiner, H. W., and Storey, A. Oct. 29, 1919. Fire-bridges; baffles; air, supplying.-Combustion products from a furnace are deflected by an inclined baffle f, arranged between fire-bridges a, b of substantially the same height, and are mixed with heated air delivered to the chamber e between the bridges by pipes such as d arranged above the fire-grate c.
Patent GB-749321-A (GB)
Title: Improvements in or relating to foldable beds
IPC: A47C17/70
Filed: 1953-09-29
Abstract: 749,321. Camp beds. FOLLEY, G. P. Sept. 28, 1954 [Sept. 29, 1953], No. 26738/53. Class 52(2). Two-part socketed side rails 3 have stubs 7 engaging sockets 9 in the tops of detachable legs 5 and the side rails are housed in wide hems 2 in the bed bottom fabric 1 so that the stubs 7 can be temporarily disengaged from their eyelets 4 when the parts of the rails are to be separated for folding. The eyelets are inset so that the fabric is in uninterrupted contact with the rails at the seam fold. End extensions 12, which may be foldable, may be detachably mounted on the side rails.
Patent GB-168790-A (GB)
Title: Improvements in street sweeping and refuse collecting machines
IPC: E01H1/08
Filed: 1920-09-21
Abstract: 168,790. Pierce, F. Sept. 21, 1920. Pneumatic collectors; sweeping-machines.-A street-sweeping and refuse collecting machine has a pair of inclined brushes 16<a> rotating in yieldable bearings depending from a frame 15 suspended by brackets 13, 14 from the vehicle frame 10, and rotated by bevel-gearing driven through chain-gearing from a shaft 29 connected by chaingearing to a power-driven shaft 47. These brushes sweep the refuse into the path of a transverse brush 37 rotating in yieldable bearings in brackets 30, 31 supported on the shaft 29, and rotated by bevel gearing driven by the shaft 29. The brush 37 sweeps the refuse into a pan 38 supported by links from the frame and by rollers 9<a> and open at the rear only. In its upper surface the pan has a hole communicating with a conduit 42 leading to the casing 43 of a suction fan B driven by the shaft 47; this fan delivers the refuse through a telescopic tube 44 to one or other of removable drawers 45 according to the position of a folding hood 44<a> in a slide on the superstructure 46. The end wall of each drawer is perforated so that the air may pass there through into lateral compartments 6 open below, the road sweepings being retained in the drawers. The fan casing 43 has a lateral opening 2 for the removal of the fan shaft 47 and boss 48, and an opening in its curved wall for the removal of the fan blades 50.